HAS ANYONE COME ACCROS THIS? UPON START UP THE SATNAV SCREEN ASKS FOR THE USUAL "I AGREE." AFTER CONFIRMING, THE SCREEN SHOWS THE CURRENT GPS POSITION AND THIS REMAINS SO. HOWEVER PRESSING ANY OF THE COMMAND BUTTONS EITHER SIDE OF THE SCREEN, IE AUDIO, CLIMATE, MENU, DESTINATION ETC. WILL NOT MAKE THE REQUIRED FUNCTION TO APPEAR ON THE TOUCHSCREEN. THE SCREEN IS LOCKED. USING THE VOICE COMMAND BUTTON ON THE STEERING WHEEL THE AUDIO AND CLIMATE CAN BE ADJUSTED. I HAVE DISCONNECTED THE BATTERY AND ALLOWED THE WHOLE SYSTEM TO REBOOT BUT TO NO AVAIL. THE WHOLE UNIT HAS BEEN SWAPPED WITH ANOTHER CAR AND THE KNOWN TO BE GOOD ONE WORKS PERFECTLY IN MY CAR, BUT MINE WILL NOT WORK IN THE OTHER CAR. THIS PROVES IT TO BE A UNIT NOT A CAR PROBLEM. ANYONE KNOW OF ANY REPAIRERS? THANKS
